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Flexible integrated electrochromic device and preparation method thereof

A technology of electrochromic devices and electrochromic layers, which is applied in the direction of instruments, nonlinear optics, electrolytic organic material coatings, etc., can solve the problems of complex structure and difficult integration, and achieve the effect of sensitive color change response

Pending Publication Date: 2022-04-12
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of traditional flexible electrochromic devices such as complex structure, difficulty in realizing integration, and light weight, the present invention provides a flexible integrated electrochromic device and its preparation method

Method used

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  • Flexible integrated electrochromic device and preparation method thereof
  • Flexible integrated electrochromic device and preparation method thereof
  • Flexible integrated electrochromic device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) The flexible nylon substrate is placed in the vacuum chamber of the thermal evaporation apparatus equipped with gold particles, vacuumed, and the vacuum degree is controlled at 2 × 10 -3 Pa; then, adjust the operating current to about 55A, and the deposition rate to be 5nm min -1 , conduct thermal evaporation for 20 minutes, and deposit a layer of gold with a thickness of about 100nm on both sides of the nylon substrate;

[0024] (2) Replace the gold particles with aluminum metal particles, vacuumize the thermal evaporation apparatus, and control the vacuum degree at 2×10 - 3 Pa; Then, adjust the operating current to about 60A, deposit an aluminum metal layer on the other side of the nylon substrate, and the deposition rate is 10nm min -1 , performing thermal evaporation for 5 minutes to obtain an aluminum metal layer with a thickness of about 50nm;

[0025] (3) Preparation of PANI electrochromic layer: the concentration is 1mol L -1 The sulfuric acid solution a...

Embodiment 2

[0029](1) The flexible nylon substrate is placed in the vacuum chamber of a thermal evaporation apparatus equipped with gold particles, vacuumed, and the vacuum degree is controlled at 2 × 10 -3 Pa, then, adjust the operating current to about 60A and the deposition rate to be 10nm min -1 , conduct thermal evaporation for 15 minutes; deposit a gold layer with a thickness of about 150nm on both sides of the nylon substrate;

[0030] (2) Replace the gold particles with aluminum metal particles, vacuumize the thermal evaporation apparatus, and control the vacuum degree at 2×10 - 3 Pa, then, adjust the operating current to be about 65A, and deposit an aluminum metal layer on the other side of the nylon substrate with a deposition rate of 15nm min -1 , performing thermal evaporation for 10 minutes to obtain an aluminum metal layer with a thickness of about 150nm;

[0031] (3) Preparation of PANI electrochromic layer: the concentration is 1.5mol L -1 sulfuric acid solution and 0....

Embodiment 3

[0035] (1) The flexible nylon substrate is placed in the vacuum chamber of a thermal evaporation apparatus equipped with gold particles, vacuumed, and the vacuum degree is controlled at 2 × 10 -3 Pa, then, adjust the operating current to about 65A, and the deposition rate to be 20nm min -1 , conduct thermal evaporation for 10 minutes, and deposit a gold layer with a thickness of about 200nm on both sides of the nylon substrate;

[0036] (2) Replace the gold particles with aluminum metal particles, vacuumize the thermal evaporation apparatus, and control the vacuum degree at 2×10 - 3 Pa, then, adjust the operating current to be about 70A, deposit an aluminum metal layer on one side of the nylon substrate, and the deposition rate is 20nmmin -1 , performing thermal evaporation for 10 minutes to obtain an aluminum metal layer with a thickness of about 200nm;

[0037] (3) Preparation of PANI electrochromic layer: the concentration is 2mol L -1 sulfuric acid solution and 0.5mol ...

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Abstract

The invention discloses a flexible integrated electrochromic device and a preparation method thereof, and belongs to the technical field of electrochromism. A flexible porous nylon substrate is used as a substrate, an electrochromic material layer and an active metal layer are deposited on the two sides of the flexible substrate respectively, and a porous structure is filled with a gel electrolyte layer. The device not only has the characteristics of flexibility, light weight and integration, but also can realize color change to display the energy level of the device. Meanwhile, the color change response is sensitive.

Description

technical field [0001] The invention relates to a flexible integrated electrochromic device and a preparation method thereof, belonging to the technical field of electrochromism. Background technique [0002] Electrochromism refers to the phenomenon of reversibly changing the optical properties (transmission, absorption, reflection, etc.) of electrochromic materials under the condition of applying a certain voltage. In recent years, the technology of combining electrochromic and energy storage devices has received extensive attention. The electrochromic properties and energy storage functions are integrated to form a multifunctional electrochromic device, which can be used in information display, flexible electronics, smart windows and infrared Military camouflage has broad application prospects. Considering the future demand for flexible wearable technology, it is crucial to develop flexible electrochromic devices with excellent electrochromic and energy storage properties...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1516C23C14/20C23C14/24C23C28/00C25D5/56C25D9/02
Inventor 张倩倩龚辉付国兴李万忠白婷刘晶冰汪浩严辉
Owner BEIJING UNIV OF TECH
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